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ECE :: Analog Electronics

Analog Electronics - Section 1
Analog Electronics - Section 2
Analog Electronics - Section 3
Analog Electronics - Section 4
Analog Electronics - Section 5
Analog Electronics - Section 6
Analog Electronics - Section 7
Analog Electronics - Section 8
Analog Electronics - Section 9
Analog Electronics - section-1
Analog Electronics - Section 10
Analog Electronics - Section 11
Analog Electronics - Section 12
Analog Electronics - Section 13
Analog Electronics - Section 14
Analog Electronics - Section 15
Analog Electronics - Section 16
Analog Electronics - Section 17
Analog Electronics - Section 18
Analog Electronics - Section 19
Analog Electronics - Section 20
Analog Electronics - Section 21
Analog Electronics - section-22
Analog Electronics - Section-23

  1. The efficiency of a full wave rectifier using centre tapped transformer is twice that in full wave bridge rectifier.

    2. A.
    True
    B.
    False

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  2. Assertion (A): CE amplifier is the most widely used BJT amplifier

    Reason (R): CE amplifier has zero phase difference between input and output

    3. A.
    Both A and R are correct and R is correct explanation for A
    B.
    Both A and R are correct but R is not correct explanation for A
    C.
    A is correct R is wrong
    D.
    A is wrong R is correct

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  3. Assertion (A): For large signal variations an amplifier circuit has to be analysed graphically

    Reason (R): The output characteristics of a transistor is nonlinear.

    4. A.
    Both A and R are correct and R is correct explanation for A
    B.
    Both A and R are correct but R is not correct explanation for A
    C.
    A is correct R is wrong
    D.
    A is wrong R is correct

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  4. Negative feedback reduces noise originating at the amplifier input.

    5. A.
    True
    B.
    False

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  5. Maximum efficiency of class B power amplifier is 50%.

    6. A.
    True
    B.
    False

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  6. In figure what is the base current if VBE = 0.7 V

    7. A.
    10 mA
    B.
    9.3 mA
    C.
    10 μA
    D.
    9.3 μA

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  7. In figure ID = 4 mA. Then VS =

    8. A.
    20 V
    B.
    4.4 V
    C.
    0.4 V
    D.
    0.44 V

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  8. The self bias provides

    9. A.
    stable Q point
    B.
    large voltage gain
    C.
    high input impedance
    D.
    high base current

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  9. In figure what is value of IC if βdc = 100. Neglect VBE

    10. A.
    5 mA
    B.
    5 μA
    C.
    10 mA
    D.
    10 μA

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  10. In figure the saturation collector current is

    11. A.
    B.
    C.
    D.
    none of the above

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